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Rockport Quarry

Past Producer in Alpena county in Michigan, United States with commodity Limestone, General
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Mineral occurrence model information
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Mining district
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10310014
MRDS ID LW00014
Record type Site
Current site name Rockport Quarry

Geographic coordinates

Geographic coordinates: -83.37987, 45.2 (WGS84)
Location accuracy 1000(meters)
Relative position LAT/LONG IS CENTER OF SECTION 6.

Site location context

Political divisions (FIPS codes)

Alpena(county)

Michigan(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Long Lake East(quadrangle 1:24,000 scale)

Alpena(quadrangle 1:100,000 scale)

Alpena(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lone Lake-Ocqueoc(hydrologic unit)

Northwestern Lake Huron(hydrologic accounting unit)

Northwestern Lake Huron(hydrologic subregion)

Great Lakes(hydrologic region)

Geographic areas

Country State County
United States Michigan Alpena

Public Land Survey System information

Meridian Township Range Section Fraction State
Michigan 032B 09E 6 Michigan

Commodities

Commodity Importance
Limestone, General Primary

Comments on the commodity information

  • FOUND TO HAVE HIGH AMOUNTS OF SULFUR AND PHOSPHOROUS IMPURITIES. ABANDONDED.

Materials information

Materials Type of material
Limestone Ore

Mineral occurrence model information

Model code 237
USGS model code 32g
Deposit model name Limestone

Nearby scientific data

(1) Traverse Group
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Michigan basin

Ore body information

  • Thickness 12M

Comments on the geologic information

  • PART OF TRAVERSE GROUP

Economic information about the deposit and operations

Operation type Surface
Development status Past Producer
Significant No
Year of first production 1915

Mining district

District name Rockport

Comments on development

  • OPENED IN 1915 BY GREAT LAKES STONE & LIME COMPANY. 1923 ACQUIRED BY KELLEY ISLAND LIME AND TRANSPORT COMPANY. IN 30'S COMPANY FOUND POOR QUALITY PRODUCT AND IT WAS ABANDONED. LAND WAS THEN ACQUIRED BY NORTHERN MICHIGAN LIMESTONE CORPORATION THEN SOLD TO CALVERT INVESTMENT COMPANY.

Reference information

Bibliographic references

  • Deposit

    HARDENBERG, H.J, 1962, ROCKPORT QUARRY REPORT, GEOLOGICAL SURVEY DIVISIONS REPORTS.

General comments

Subject category Comment text
Deposit TRAVERSE GROUP OUTCROPS AT THE ROCKPORT LOCATION. THE ROCKPORT QUARRY LIMESTONE IS UNDERLAIN BY THE BELL SHALE. THE BELL SHALE IS 80 FEET THICK IS IS PRIMARILY BLUE, CALCAREOUS SHALE, WITH A FEW MINOR LIMESTONE BEDS. THE SHALE IS REPORTED TO HAVE HIGH LEVELS OF CALCIUM CARBONATE AND WOULD NOT BE GOOD FOR BRICK OR TILE MANUFACTURING.

Reporter information

Type Date Name Affiliation Comment
Reporter 29-AUG-01 Anderson, Arlene (M. Gere) Michigan Department of Natural Resources

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

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